在多模块springboot项目中无法检索spring应用程序上下文/找不到EntityManagerFactory

Question

我有一个多模块springboot项目。这是架构：

用@SpringBootApplication注释的类在顶部模块（webservice）中。当我在测试类中使用@SpringBootTest从顶层模块运行集成测试时，它可以正常工作。

但是现在我想从业务模块运行集成测试。 @SpringBootTest仅不再起作用，因为在业务模块中找不到配置类。因此，我在业务模块中创建了一个配置类：

package com.berthoud.p7.webserviceapp.business.config;

import org.springframework.boot.SpringBootConfiguration;
import org.springframework.context.annotation.ComponentScan;

@SpringBootConfiguration
@ComponentScan(basePackages = "com.berthoud.p7")
public class TestContextConfiguration {
}

在测试类中，我指向了这个配置类，如下所示：

@RunWith(SpringRunner.class)
@SpringBootTest(classes = TestContextConfiguration.class)
public class BookResearchIT {
//my tests...
}

这样做，我希望Spring将在com.berthoud.p7包及其子文件夹中声明的所有bean添加到上下文中。确实，当我在测试类中自动装配Spring bean时，现在看起来还不错（IntelliJ不再告诉我们@autowired bean无法自动装配）：

但是，尽管如此，当我运行测试时，Spring无法加载应用程序上下文：

***************************
APPLICATION FAILED TO START
***************************

Description:

Field bookReferenceDAO in com.berthoud.p7.webserviceapp.business.BookResearchManager required a bean of type 'com.berthoud.p7.webserviceapp.consumer.contract.BookReferenceDAO' that could not be found.

The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean of type 'com.berthoud.p7.webserviceapp.consumer.contract.BookReferenceDAO' in your configuration.

我不明白。这是我声明有关豆子的方法：

package com.berthoud.p7.webserviceapp.business;

@Service
public class BookResearchManager {

    @Autowired
    BookReferenceDAO bookReferenceDAO;

    @Autowired
    LibrairyDAO librairyDAO;

    @Autowired
    BookDAO bookDAO;

package com.berthoud.p7.webserviceapp.consumer.contract;

public interface BookReferenceDAO {
// method signatures
}

package com.berthoud.p7.webserviceapp.consumer.repositories.SpringDataJPA;

public interface BookReferenceRepository extends CrudRepository<BookReference, Integer>, BookReferenceDAO {

我做错了什么？

编辑：：像这样更改了我的配置类后：

package com.berthoud.p7.webserviceapp.business.config;

import org.springframework.boot.SpringBootConfiguration;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;


@SpringBootConfiguration
@ComponentScan(basePackages = "com.berthoud.p7.webserviceapp")
@EnableJpaRepositories(basePackages = "com.berthoud.p7.webserviceapp.consumer")
@EntityScan(basePackages = "com.berthoud.p7.webserviceapp")
public class TestContextConfiguration {
}

我现在有另一个错误：

Field bookReferenceDAO in com.berthoud.p7.webserviceapp.business.BookResearchManager required a bean named 'entityManagerFactory' that could not be found.